Noctua ventilator NF-A6x25 PWM 60 mm, 12 V, 550–3000 RPM, 29,2 m³/h, 19,3 dB

The Noctua NF-A6x25 PWM is a 60x25mm premium quiet fan engineered with aerodynamic features including Flow Acceleration Channels and Noctua's AAO frame. The PWM model includes Noctua's NE-FD1 custom IC for automatic speed control via 4-pin fan headers and a Low-Noise-Adaptor that reduces the maximum RPM from 3000 to 2300 during PWM operation. The fan uses an SSO2 bearing and is designed for smooth, reliable operation under demanding conditions.

Advantages

The fan delivers high airflow and static pressure for its size while maintaining low noise levels. Its NE-FD1 PWM controller enables precise automatic speed regulation when connected to a 4-pin header. The included Low-Noise-Adaptor offers an option to lower maximum speed and noise. SSO2 bearing and refined manufacturing ensure long-term smoothness and durability.

Key specifications

• Size: 60 x 25 mm
• Model: NF-A6x25 PWM
• Control: 4-pin PWM with NE-FD1 IC
• Maximum speed (standard PWM): 3000 RPM
• Maximum speed (with Low-Noise-Adaptor): 2300 RPM
• Bearing type: SSO2

How to use

Connect the fan to a 4-pin motherboard fan header to enable automatic PWM speed control. If lower maximum speed and reduced noise are desired, attach the supplied Low-Noise-Adaptor between the fan connector and the header. Ensure the fan is mounted securely in the intended location and that airflow orientation matches system cooling requirements. Follow standard anti-static precautions when handling.

Recommendations

The NF-A6x25 PWM is suitable for compact systems, cases with restricted fan clearance, or spot cooling where a balance of airflow, pressure and low noise is required. Verify compatibility with available mounting space and header type before installation.